Teether base



FIG. 1 is a top, front, right perspective view of a teether base showing our new design;

FIG. 2 is a top, rear, left perspective view thereof.

FIG. 3 is front view thereof.

FIG. 4 is a rear view thereof.

FIG. 5 is a top view thereof.

FIG. 6 is a right view thereof.

FIG. 7 is a bottom view thereof.

FIG. 8 is a left view thereof.

FIG. 9 is a top, front, right perspective reference view thereof, shown in a position of use with an exemplary teether top; and,

FIG. 10 is a top, rear, left perspective reference view thereof, shown in a position of use with the exemplary teether top.

The broken lines in the drawings illustrate unclaimed subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a teether base, as shown and described. 